Tom is in respiratory arrest due to an electrical shock. Why does a good samaritan have up to 4 or 5 minutes to begin CPR and save Tom's life?
A) There is reserve oxygen in Tom's lungs.
B) There is a venous reserve of oxygen in Tom's blood.
C) The Haldane effect lasts up to 5 minutes.
D) Tom's hypoxic drive will keep him alive for up to 5 minutes.
E) The ambient Po2 can support life that long.
B
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